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Leadership Skill of Police Personnel: An Overview of Bangladesh
Issue:
Volume 2, Issue 2, June 2017
Pages:
31-37
Received:
23 January 2017
Accepted:
7 February 2017
Published:
1 March 2017
DOI:
10.11648/j.dmath.20170202.11
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Abstract: The objective of the paper is to shed light on police leadership skill by interviewing the police personnel. The study is based on the cases. The case studies are plinth upon interviews with 23 police officers at Tangail district in Bangladesh. The fact is that, there was no women police leader as competent respondent in this study. The results were clear; 100% of the respondents were men. From the case study, I identify some leadership skill which should possessed by police personnel. These are, operational skill, ethical decision making, accountability, honesty, predictability, logic, supportive, approachable, higher level thinker, motivation, creative, taking responsibility, respectful, desire to influence, enthusiastic, selflessness, politically astute, good communicator, team builder and intellectual motivation. It is concluded that effective police leaders have particular relational strengths that serve to elevate levels of commitment, work satisfaction, and motivation. The paper also points out that a police leader can encourage and motivate other police within the department to achieve the goal. The findings provide important preliminary insights into the experiences and beliefs of police supervisors.
Abstract: The objective of the paper is to shed light on police leadership skill by interviewing the police personnel. The study is based on the cases. The case studies are plinth upon interviews with 23 police officers at Tangail district in Bangladesh. The fact is that, there was no women police leader as competent respondent in this study. The results wer...
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On the Intersection of a Hyperboloid and a Plane
Issue:
Volume 2, Issue 2, June 2017
Pages:
38-42
Received:
19 January 2017
Accepted:
7 February 2017
Published:
1 March 2017
DOI:
10.11648/j.dmath.20170202.12
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Abstract: The intersection topic is quite popular at an interdisciplinary level. It can be the friends of geometry, geodesy and others. The curves of intersection resulting in this case are not only ellipses but rather all types of conics: ellipses, hyperbolas and parabolas. In text books of mathematics usually only cases are treated, where the planes of intersection are parallel to the coordinate planes. Here the general case is illustrated with intersecting planes which are not necessarily parallel to the coordinate planes. We have developed an algorithm for intersection of a hyperboloid and a plane with a closed form solution. To do this, we rotate the hyperboloid and the plane until inclined plane moves parallel to the XY plane. In this situation, the intersection ellipse and its projection will be the same. This study aims to show how to obtain the center, the semi-axis and orientation of the intersection curve.
Abstract: The intersection topic is quite popular at an interdisciplinary level. It can be the friends of geometry, geodesy and others. The curves of intersection resulting in this case are not only ellipses but rather all types of conics: ellipses, hyperbolas and parabolas. In text books of mathematics usually only cases are treated, where the planes of int...
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Effect of Buoyancy Force on the Flow Field in a Square Cavity with Heated from Below
Md. Noor-A-Alam Siddiki,
Ferjana Habiba,
Raju Chowdhury
Issue:
Volume 2, Issue 2, June 2017
Pages:
43-47
Received:
25 January 2017
Accepted:
8 February 2017
Published:
1 March 2017
DOI:
10.11648/j.dmath.20170202.13
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Abstract: In this paper, the effect of buoyancy force in a square enclosure is studied numerically. The coupled equations of continuity, momentum and energy are solved by a finite difference method. The SIMPLE algorithm is used to solve iteratively the pressure-velocities coupling. The numerical investigations in this analysis are made over a wide range of parameters, Rayleigh number and dimensionless heater lengths. Results are presented graphically in the form of streamlines, isotherms and also with a velocity profiles and average Nusselt numbers.
Abstract: In this paper, the effect of buoyancy force in a square enclosure is studied numerically. The coupled equations of continuity, momentum and energy are solved by a finite difference method. The SIMPLE algorithm is used to solve iteratively the pressure-velocities coupling. The numerical investigations in this analysis are made over a wide range of p...
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Applying Three Phase Lanchester Linear Model to the Ardennes Campaign
Henry Chao,
Wen-Han Tang,
Ventriloquist Himalaya
Issue:
Volume 2, Issue 2, June 2017
Pages:
48-53
Received:
19 January 2017
Accepted:
20 February 2017
Published:
3 March 2017
DOI:
10.11648/j.dmath.20170202.14
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Abstract: We constructed a new Lanchester linear model for the Ardennes Campaign with three phases and Bracken’s tactical factor to obtain an improved goodness of fit with historical data. It indicates that the shift from defense to attack for the Blue force can be better described by adding a deadlock period. Our new model provides an improved explanation for the military operation research to calibrate a better fit between prediction and historical data.
Abstract: We constructed a new Lanchester linear model for the Ardennes Campaign with three phases and Bracken’s tactical factor to obtain an improved goodness of fit with historical data. It indicates that the shift from defense to attack for the Blue force can be better described by adding a deadlock period. Our new model provides an improved explanation f...
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On Analytical Approach to Semi-Open/Semi-Closed Sets
Musundi Sammy Wabomba,
Kinyili Musyoka,
Priscah Moraa Ohuru
Issue:
Volume 2, Issue 2, June 2017
Pages:
54-58
Received:
26 January 2017
Accepted:
16 February 2017
Published:
3 March 2017
DOI:
10.11648/j.dmath.20170202.15
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Abstract: The concept of open and closed sets has been extensively discussed on both metric and topological spaces. Various properties of these sets have been proved under the underlying spaces. However, scanty literature is available about semi-open /semi-closed sets on these spaces. For instance, little effort has been made in introducing these sets as clopen sets in topological spaces but no literature exists of the same under metric spaces. In this paper, with reference to the already existing definitions and properties of open and closed sets in metric spaces as well as in topological spaces we shall present definitions of semi-open/ semi-closed sets and furthermore prove basic properties of these sets on metrics spaces. The results of the study will provide a deeper understanding as well as extension knowledge for the concept of open and closed sets to their somewhat counter-intuitive terms of semi- open /semi-closed.
Abstract: The concept of open and closed sets has been extensively discussed on both metric and topological spaces. Various properties of these sets have been proved under the underlying spaces. However, scanty literature is available about semi-open /semi-closed sets on these spaces. For instance, little effort has been made in introducing these sets as clo...
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